OpeningYour drawing is the starting point. We machine the 32 Type collet to your exact hex bar stock dimensions. Every unit is verified before shipment. No guesswork, no tolerance
Custom CNC Collet Chuck 32 Type Hex Bar Stock Made in China
OpeningYour drawing is the starting point. We machine the 32 Type collet to your exact hex bar stock dimensions. Every unit is verified before shipment. No guesswork, no tolerance drift.Tolerance: ±0.
Get a Fast Quote for This Part
Send us your drawing / quantity / material — reply within 24h.
Your drawing is the starting point. We machine the 32 Type collet to your exact hex bar stock dimensions. Every unit is verified before shipment. No guesswork, no tolerance drift.
Tolerance: ±0.005 mm on bore and hex profile
Lead time: 7–12 working days for standard sizes
No MOQ – order 1 piece or 1,000 pieces
Material: 20CrMnTi or 40Cr, case-hardened to 58–62 HRC
Made in China, shipped worldwide from our Dongguan factory
This is a custom CNC collet chuck, not an off-the-shelf item. You send the print. We make the collet.
Specifications
Parameter
Value
Type
32 Type (DIN 6343 compatible)
Bar stock shape
Hexagonal, sizes 4 mm to 32 mm across flats
Bore tolerance
±0.005 mm
Concentricity
≤0.008 mm TIR
Hardness
58–62 HRC (case-hardened)
Surface finish
Ra 0.4 µm on bore, Ra 0.8 µm on outer diameter
Material options
20CrMnTi, 40Cr, 9SiCr, or per your spec
Process
CNC turning, internal grinding, wire-cut slotting
Heat treatment
Carburizing + quenching + tempering
Batch size
1 to 10,000 pieces
Inspection
100% dimensional check, report per batch
We use CNC lathes and internal grinders for the bore. The hex profile is wire-cut to maintain sharp corners. Each collet is individually tested with a hex gauge pin before packing.
Three reasons buyers send us their drawings
1. Batch-traceable quality.
Every batch gets a unique heat number. Material certs are stored for 5 years. If you have a problem, we trace it back to the exact melt and machining shift. No ambiguity.
2. Inspection report per batch.
You get a full dimensional report with CMM data, hardness readings, and surface roughness values. This is not a generic certificate. It matches your drawing callouts line by line.
3. One factory for CNC + stamping + spring + heatsink.
You are not just buying a collet. You are buying a vendor who can also make the spring that holds it, the stamping that mounts it, and the heatsink that cools the spindle. Fewer suppliers, fewer logistics headaches, one quality standard.
Where these parts are used
The 32 Type collet with hex bar stock is used in automatic lathes and Swiss-type machines. Typical applications:
Fastener production: Hex bolts and screws machined from hex bar. The collet grips the bar firmly without marring the flats.
Hydraulic fittings: Hex-shaped valve bodies and adapters. The collet holds the hex profile for secondary drilling or milling.
Automotive components: Sensor housings and fuel system parts made from hex brass or steel. The collet ensures concentric rotation at high spindle speeds.
Electrical connectors: Hex terminals for power distribution. The collet provides repeatable clamping force for batch production.
If you machine hex bar stock on a CNC auto lathe, this collet is the interface between your spindle and your material.
Q: What is your MOQ?
A: No MOQ. We make one piece for prototype validation, then scale to production. Many buyers start with 5–10 pieces to test fit and run speeds.
Q: How do you control tolerance and quality?
A: We use CNC grinding for the bore and wire-cut EDM for the hex slot. Every collet is measured with a CMM and a hex gauge pin. The inspection report is included with your shipment.
Q: What is your lead time?
A: Standard sizes: 7–10 working days. Custom materials or special heat treatment: 12–15 working days. We ship via DHL or FedEx, door to door.
Q: Can you provide material certificates?
A: Yes. We supply mill certs for the raw bar stock and our own heat treatment report. Both are traceable to your batch.
Send your drawing
We reply with a firm quote in 12 hours. Send your PDF or STEP file. We will confirm the hex size, tolerance, and hardness. No obligation, no pressure.
Email: sc@bquq.com
WhatsApp: +86 13713157787
Your custom CNC collet chuck, made in China, verified before shipment.
